Finding the Fourth Proportional to 1,888,444.21, 2,605,971.55 and 1,072,645.37
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Solution
The fourth proportional to 1,888,444.21, 2,605,971.55 and 1,072,645.37 is: 1,480,204.34
Step by Step Solution
- Step 1: Write the proportion equation
1,888,444.21 : 2,605,971.55 = 1,072,645.37 : x - Step 2: Convert to fraction form
1,888,444.21/2,605,971.55 = 1,072,645.37/x - Step 3: Cross multiply
1,888,444.21x = 2,605,971.55 × 1,072,645.37 - Step 4: Simplify right side
1,888,444.21x = 2,795,283,317,459.22 - Step 5: Solve for x
x = 2,795,283,317,459.22/1,888,444.21 - Step 6: Final answer
x = 1,480,204.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.